package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;
    private static final String salt="cLo8QmTG";
    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        String md5password=salt.charAt(0)+password+salt.charAt(5);
        password=DigestUtils.md5DigestAsHex(md5password.getBytes());
        System.out.println(password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }


    /**
     * 新增员工
     * @param employeeDTO
     * @return
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        System.out.println("当前EmployeeServiceImpl线程的id"+Thread.currentThread().getId());
        Employee employee = new Employee();
        //拷贝对象的属性
        BeanUtils.copyProperties(employeeDTO,employee);
        //设置账号状态
        employee.setStatus(StatusConstant.ENABLE);
        // TODO 后期需要进行md5加密，然后再进行比对
        String md5password=salt.charAt(0)+ PasswordConstant.DEFAULT_PASSWORD+salt.charAt(5);
        String password=DigestUtils.md5DigestAsHex(md5password.getBytes());
        System.out.println(password);
        employee.setPassword(password);
      /*  employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        // TODO 后期需要改为当前登录用户的id
        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());*/
        employeeMapper.insert(employee);
    }
    /**
     * 分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {

        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
        long total = page.getTotal();
        List<Employee> result = page.getResult();
        return new PageResult(total,result);
    }

    //根据status和id启用,禁用员工信息
    @Override
    public void updateByIdAndStatus(Integer status, Long id) {
        Employee employee = Employee.builder()
                .status(status)
                .id(id)
                .build();
        employeeMapper.update(employee);
    }

    //编辑员工
    @Override
    public void updateEmployee(EmployeeDTO employeeDTO) {

        //使用拷贝
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
      /*  employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(BaseContext.getCurrentId());*/
        /*使用build传入数据
        Employee employee = Employee.builder()
                .id(employeeDTO.getId())
                .name(employeeDTO.getName())
                .idNumber(employeeDTO.getIdNumber())
                .phone(employeeDTO.getPhone())
                .sex(employeeDTO.getSex())
                .username(employeeDTO.getUsername())
                .updateTime(LocalDateTime.now())
                .updateUser(BaseContext.getCurrentId())
                .build();
        */
        employeeMapper.update(employee);
    }

    //根据id查询员工
    @Override
    public Employee selectById(Long id) {
        Employee employee=employeeMapper.getById(id);
        employee.setPassword("******");
        return employee;
    }


}
